四节点三角形能量正交元的超逼近性分析

Analysis of the superclose property of 4-parameter triangular energy-othogonal element

关于二阶椭圆边值问题,证明了四节点能量正交三角形元的解与三角形线形元解具有相似性,并在"好"的网格条件下进一步分析了其超逼近性.

For two order problems, we prove that the solustion of the 4-parameter triangular energy-othogonal element is similar to that of the triangular linear element, and the superclose property of the element is discussed on ＂good＂ meshes.